[quote]hey guys, i've heard of adaptive PSU that turn of the PSU when idle or under a minim load like browsing the net, and when under heavy load such as playing graphic intensive games it fires up the PSU fan....i think Antec has some of those PSUs? and i'd like to get a quiet PSU(when the fan is on), what brand should i be looking into for this kind of adaptive PSU? 650/700w is sufficient enough for me.
i'm running Core 2 EXtreme (QX6850), 8800GTX, 4GB RAM, 2 DVD writers, 750GB HDD.
No psu turns itself off, since it would turn off the machine at the same time. You are probably thinking of the fan?:)
If you want a silent PSU, best place to look for one that actually are silent are:
http://www.silentpcreview.com/forums/viewforum.php?f=6&sid=d94711b76c7ab7f1898b926525d52428
They value silence above all!
If you get a good PSU, you don't need so much W for your setup. Check out the Corsair PSU finder:
http://www.corsair.com/psufinder/default.aspx
oops, sorry i meant turn off the fan : ...i was half asleep when i posted that message.